Quantities that are conserved in a chemical reaction include which of the following: moles, mass, atoms, volume, molecules.

What are atoms and mass?

400

In this law, PRESSURE is constant and VOLUME and TIME are directly proportionate. *Hint: May help to sketch graph*

What is Charles' Law?

400

(mass of solute/mass of solution) x 100%

What is mass percent?

400

Increased kinetic energy results in more frequent collisions and collisions with greater energy.

What is increased temperature?

400

Write the balanced chemical equation for neutralization reactions between the following acids and bases:
Acid: HCl
Base: NaOH

What is HCl + NaOH -> NaCl + H2O?

500

Using the empirical formula, calculate the moles (subscript) of carbon in caffeine with a percent composition of 49.5% carbon. *Hint: Oxygen is the limiting reactant at 1.03 mole*

What is 4?

500

A 3.25 L container of ammonia gas exerts a pressure of 652 mm Hg at a temperature of 243 K. Calculate the pressure of this same amount of gas in a 2.50 L container at a temperature of 221 K. *Hint: Use Combined Gas Law*